src/mesa/main/glthread_marshal.h

   1 /*
   2  * Copyright © 2012 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 /** \file glthread_marshal.h
  25  *
  26  * Declarations of functions related to marshalling GL calls from a client
  27  * thread to a server thread.
  28  */
  29
  30 #ifndef MARSHAL_H
  31 #define MARSHAL_H
  32
  33 #include "main/glthread.h"
  34 #include "main/context.h"
  35 #include "main/macros.h"
  36 #include "marshal_generated.h"
  37
  38 struct marshal_cmd_base
  39 {
  40    /**
  41     * Type of command.  See enum marshal_dispatch_cmd_id.
  42     */
  43    uint16_t cmd_id;
  44
  45    /**
  46     * Size of command, in multiples of 4 bytes, including cmd_base.
  47     */
  48    uint16_t cmd_size;
  49 };
  50
  51 typedef void (*_mesa_unmarshal_func)(struct gl_context *ctx, const void *cmd);
  52 extern const _mesa_unmarshal_func _mesa_unmarshal_dispatch[NUM_DISPATCH_CMD];
  53
  54 static inline void *
  55 _mesa_glthread_allocate_command(struct gl_context *ctx,
  56                                 uint16_t cmd_id,
  57                                 int size)
  58 {
  59    struct glthread_state *glthread = &ctx->GLThread;
  60    struct glthread_batch *next = &glthread->batches[glthread->next];
  61    struct marshal_cmd_base *cmd_base;
  62    const int aligned_size = ALIGN(size, 8);
  63
  64    if (unlikely(next->used + size > MARSHAL_MAX_CMD_SIZE)) {
  65       _mesa_glthread_flush_batch(ctx);
  66       next = &glthread->batches[glthread->next];
  67    }
  68
  69    cmd_base = (struct marshal_cmd_base *)&next->buffer[next->used];
  70    next->used += aligned_size;
  71    cmd_base->cmd_id = cmd_id;
  72    cmd_base->cmd_size = aligned_size;
  73    return cmd_base;
  74 }
  75
  76 /**
  77  * Instead of conditionally handling marshaling immediate index data in draw
  78  * calls (deprecated and removed in GL core), we just disable threading.
  79  */
  80 static inline bool
  81 _mesa_glthread_has_non_vbo_vertices_or_indices(const struct gl_context *ctx)
  82 {
  83    const struct glthread_state *glthread = &ctx->GLThread;
  84    struct glthread_vao *vao = glthread->CurrentVAO;
  85
  86    return ctx->API != API_OPENGL_CORE &&
  87           (vao->CurrentElementBufferName == 0 || vao->HasUserPointer);
  88 }
  89
  90 static inline bool
  91 _mesa_glthread_has_non_vbo_vertices(const struct gl_context *ctx)
  92 {
  93    const struct glthread_state *glthread = &ctx->GLThread;
  94
  95    return ctx->API != API_OPENGL_CORE && glthread->CurrentVAO->HasUserPointer;
  96 }
  97
  98 static inline bool
  99 _mesa_glthread_has_non_vbo_vertices_or_indirect(const struct gl_context *ctx)
 100 {
 101    const struct glthread_state *glthread = &ctx->GLThread;
 102
 103    return ctx->API != API_OPENGL_CORE &&
 104           (glthread->CurrentDrawIndirectBufferName == 0 ||
 105            glthread->CurrentVAO->HasUserPointer);
 106 }
 107
 108 static inline bool
 109 _mesa_glthread_has_non_vbo_vertices_or_indices_or_indirect(const struct gl_context *ctx)
 110 {
 111    const struct glthread_state *glthread = &ctx->GLThread;
 112    struct glthread_vao *vao = glthread->CurrentVAO;
 113
 114    return ctx->API != API_OPENGL_CORE &&
 115           (glthread->CurrentDrawIndirectBufferName == 0 ||
 116            vao->CurrentElementBufferName == 0 || vao->HasUserPointer);
 117 }
 118
 119
 120 struct _glapi_table *
 121 _mesa_create_marshal_table(const struct gl_context *ctx);
 122
 123 static inline unsigned
 124 _mesa_buffer_enum_to_count(GLenum buffer)
 125 {
 126    switch (buffer) {
 127    case GL_COLOR:
 128       return 4;
 129    case GL_DEPTH_STENCIL:
 130       return 2;
 131    case GL_STENCIL:
 132    case GL_DEPTH:
 133       return 1;
 134    default:
 135       return 0;
 136    }
 137 }
 138
 139 static inline unsigned
 140 _mesa_tex_param_enum_to_count(GLenum pname)
 141 {
 142    switch (pname) {
 143    case GL_TEXTURE_MIN_FILTER:
 144    case GL_TEXTURE_MAG_FILTER:
 145    case GL_TEXTURE_WRAP_S:
 146    case GL_TEXTURE_WRAP_T:
 147    case GL_TEXTURE_WRAP_R:
 148    case GL_TEXTURE_BASE_LEVEL:
 149    case GL_TEXTURE_MAX_LEVEL:
 150    case GL_GENERATE_MIPMAP_SGIS:
 151    case GL_TEXTURE_COMPARE_MODE_ARB:
 152    case GL_TEXTURE_COMPARE_FUNC_ARB:
 153    case GL_DEPTH_TEXTURE_MODE_ARB:
 154    case GL_DEPTH_STENCIL_TEXTURE_MODE:
 155    case GL_TEXTURE_SRGB_DECODE_EXT:
 156    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
 157    case GL_TEXTURE_SWIZZLE_R:
 158    case GL_TEXTURE_SWIZZLE_G:
 159    case GL_TEXTURE_SWIZZLE_B:
 160    case GL_TEXTURE_SWIZZLE_A:
 161    case GL_TEXTURE_MIN_LOD:
 162    case GL_TEXTURE_MAX_LOD:
 163    case GL_TEXTURE_PRIORITY:
 164    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 165    case GL_TEXTURE_LOD_BIAS:
 166    case GL_TEXTURE_TILING_EXT:
 167       return 1;
 168    case GL_TEXTURE_CROP_RECT_OES:
 169    case GL_TEXTURE_SWIZZLE_RGBA:
 170    case GL_TEXTURE_BORDER_COLOR:
 171       return 4;
 172    default:
 173       return 0;
 174    }
 175 }
 176
 177 static inline unsigned
 178 _mesa_fog_enum_to_count(GLenum pname)
 179 {
 180    switch (pname) {
 181    case GL_FOG_MODE:
 182    case GL_FOG_DENSITY:
 183    case GL_FOG_START:
 184    case GL_FOG_END:
 185    case GL_FOG_INDEX:
 186    case GL_FOG_COORDINATE_SOURCE_EXT:
 187    case GL_FOG_DISTANCE_MODE_NV:
 188       return 1;
 189    case GL_FOG_COLOR:
 190       return 4;
 191    default:
 192       return 0;
 193    }
 194 }
 195
 196 static inline unsigned
 197 _mesa_light_enum_to_count(GLenum pname)
 198 {
 199    switch (pname) {
 200    case GL_AMBIENT:
 201    case GL_DIFFUSE:
 202    case GL_SPECULAR:
 203    case GL_POSITION:
 204       return 4;
 205    case GL_SPOT_DIRECTION:
 206       return 3;
 207    case GL_SPOT_EXPONENT:
 208    case GL_SPOT_CUTOFF:
 209    case GL_CONSTANT_ATTENUATION:
 210    case GL_LINEAR_ATTENUATION:
 211    case GL_QUADRATIC_ATTENUATION:
 212       return 1;
 213    default:
 214       return 0;
 215    }
 216 }
 217
 218 static inline unsigned
 219 _mesa_light_model_enum_to_count(GLenum pname)
 220 {
 221    switch (pname) {
 222    case GL_LIGHT_MODEL_AMBIENT:
 223       return 4;
 224    case GL_LIGHT_MODEL_LOCAL_VIEWER:
 225    case GL_LIGHT_MODEL_TWO_SIDE:
 226    case GL_LIGHT_MODEL_COLOR_CONTROL:
 227       return 1;
 228    default:
 229       return 0;
 230    }
 231 }
 232
 233 static inline unsigned
 234 _mesa_texenv_enum_to_count(GLenum pname)
 235 {
 236    switch (pname) {
 237    case GL_TEXTURE_ENV_MODE:
 238    case GL_COMBINE_RGB:
 239    case GL_COMBINE_ALPHA:
 240    case GL_SOURCE0_RGB:
 241    case GL_SOURCE1_RGB:
 242    case GL_SOURCE2_RGB:
 243    case GL_SOURCE3_RGB_NV:
 244    case GL_SOURCE0_ALPHA:
 245    case GL_SOURCE1_ALPHA:
 246    case GL_SOURCE2_ALPHA:
 247    case GL_SOURCE3_ALPHA_NV:
 248    case GL_OPERAND0_RGB:
 249    case GL_OPERAND1_RGB:
 250    case GL_OPERAND2_RGB:
 251    case GL_OPERAND3_RGB_NV:
 252    case GL_OPERAND0_ALPHA:
 253    case GL_OPERAND1_ALPHA:
 254    case GL_OPERAND2_ALPHA:
 255    case GL_OPERAND3_ALPHA_NV:
 256    case GL_RGB_SCALE:
 257    case GL_ALPHA_SCALE:
 258    case GL_TEXTURE_LOD_BIAS_EXT:
 259    case GL_COORD_REPLACE_NV:
 260       return 1;
 261    case GL_TEXTURE_ENV_COLOR:
 262       return 4;
 263    default:
 264       return 0;
 265    }
 266 }
 267
 268 static inline unsigned
 269 _mesa_texgen_enum_to_count(GLenum pname)
 270 {
 271    switch (pname) {
 272    case GL_TEXTURE_GEN_MODE:
 273       return 1;
 274    case GL_OBJECT_PLANE:
 275    case GL_EYE_PLANE:
 276       return 4;
 277    default:
 278       return 0;
 279    }
 280 }
 281
 282 static inline unsigned
 283 _mesa_material_enum_to_count(GLenum pname)
 284 {
 285    switch (pname) {
 286    case GL_EMISSION:
 287    case GL_AMBIENT:
 288    case GL_DIFFUSE:
 289    case GL_SPECULAR:
 290    case GL_AMBIENT_AND_DIFFUSE:
 291       return 4;
 292    case GL_COLOR_INDEXES:
 293       return 3;
 294    case GL_SHININESS:
 295       return 1;
 296    default:
 297       return 0;
 298    }
 299 }
 300
 301 static inline unsigned
 302 _mesa_point_param_enum_to_count(GLenum pname)
 303 {
 304    switch (pname) {
 305    case GL_DISTANCE_ATTENUATION_EXT:
 306       return 3;
 307    case GL_POINT_SIZE_MIN_EXT:
 308    case GL_POINT_SIZE_MAX_EXT:
 309    case GL_POINT_FADE_THRESHOLD_SIZE_EXT:
 310    case GL_POINT_SPRITE_R_MODE_NV:
 311    case GL_POINT_SPRITE_COORD_ORIGIN:
 312       return 1;
 313    default:
 314       return 0;
 315    }
 316 }
 317
 318 static inline unsigned
 319 _mesa_calllists_enum_to_count(GLenum type)
 320 {
 321    switch (type) {
 322    case GL_BYTE:
 323    case GL_UNSIGNED_BYTE:
 324       return 1;
 325    case GL_SHORT:
 326    case GL_UNSIGNED_SHORT:
 327    case GL_2_BYTES:
 328       return 2;
 329    case GL_3_BYTES:
 330       return 3;
 331    case GL_INT:
 332    case GL_UNSIGNED_INT:
 333    case GL_FLOAT:
 334    case GL_4_BYTES:
 335       return 4;
 336    default:
 337       return 0;
 338    }
 339 }
 340
 341 static inline unsigned
 342 _mesa_patch_param_enum_to_count(GLenum pname)
 343 {
 344    switch (pname) {
 345    case GL_PATCH_DEFAULT_OUTER_LEVEL:
 346       return 4;
 347    case GL_PATCH_DEFAULT_INNER_LEVEL:
 348       return 2;
 349    default:
 350       return 0;
 351    }
 352 }
 353
 354 static inline unsigned
 355 _mesa_memobj_enum_to_count(GLenum pname)
 356 {
 357    switch (pname) {
 358    case GL_DEDICATED_MEMORY_OBJECT_EXT:
 359       return 1;
 360    default:
 361       return 0;
 362    }
 363 }
 364
 365 static inline unsigned
 366 _mesa_semaphore_enum_to_count(GLenum pname)
 367 {
 368    switch (pname) {
 369    /* EXT_semaphore and EXT_semaphore_fd define no parameters */
 370    default:
 371       return 0;
 372    }
 373 }
 374
 375 #endif /* MARSHAL_H */